# SDR CALA2013080200527

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2013
- Submitted: August 2, 2013
- Operation: Air carrier
- Aircraft: [N21723](https://openairdocs.org/aircraft/N21723), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28790
- Aircraft time: 48,098 hours, 16,059 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 143A11242
- Condition: Cracked
- Location: Bs 500c
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013080200527

## Discrepancy

FRAME BETWEEN STR 8 AND 9R AT BS 500C INBD RIVET HAS CRACK EMINATING FROM HOLE VISUALLY AND INDICATED BY NDT.  REPAIRED IAW ECRA 5310-04716, REV E. SEE ALL WHIPS ATTACHED.

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